Package com.intellij.dupLocator

Class NodeSpecificHasher

java.lang.Object

com.intellij.dupLocator.NodeSpecificHasher

All Implemented Interfaces:

DuplocateVisitor

Direct Known Subclasses:

NodeSpecificHasherBase

public abstract class NodeSpecificHasher
extends java.lang.Object
implements DuplocateVisitor

Constructor Summary

Constructors

Constructor and Description
NodeSpecificHasher()

Method Summary

Modifier and Type	Method and Description
abstract boolean	areNodesEqual(PsiElement node1, PsiElement node2) This is dual function to getNodeCost, checks whether 2 nodes with same costs are really equal
boolean	areTreesEqual(PsiElement root1, PsiElement root2, int discardCost)
abstract boolean	checkDeep(PsiElement node1, PsiElement node2)
abstract java.util.List<PsiElement>	getNodeChildren(PsiElement node) List all of the nodes to process within TreeComparator
abstract int	getNodeCost(PsiElement node) Used in TreeComparator and TreeHashers
abstract int	getNodeHash(PsiElement node) getNodeHash is called on each node, which was returned by getNodeChildren method

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.intellij.dupLocator.DuplocateVisitor

hashingFinished, visitNode

Constructor Detail

NodeSpecificHasher

public NodeSpecificHasher()

Method Detail

getNodeHash

public abstract int getNodeHash(PsiElement node)

getNodeHash is called on each node, which was returned by getNodeChildren method

getNodeCost

public abstract int getNodeCost(PsiElement node)

Used in TreeComparator and TreeHashers

Returns:

-1 if you want to ignore this node. Note: only nodes with equal values can be considered as equal (areNodesEqual will be called further) This cost will be used when calculating compound nodes. See DuplocatorSettings#LOWER_BOUND

getNodeChildren

public abstract java.util.List<PsiElement> getNodeChildren(PsiElement node)

List all of the nodes to process within TreeComparator

areNodesEqual

public abstract boolean areNodesEqual(PsiElement node1,
                                      PsiElement node2)

This is dual function to getNodeCost, checks whether 2 nodes with same costs are really equal

areTreesEqual

public boolean areTreesEqual(PsiElement root1,
                             PsiElement root2,
                             int discardCost)

checkDeep

public abstract boolean checkDeep(PsiElement node1,
                                  PsiElement node2)